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Elasticity Of Demand - Definition & Advantages of Elasticity Of Demand | What is Elasticity Of Demand?

The elasticity of demand, also known as price elasticity, measures the responsiveness of consumption or demand to changes in price. It considers various factors that influence demand, including the price of the product and people's income.


What is the Elasticity of Demand?

Elasticity of demand quantifies the extent of change in the quantity demanded in response to changes in variables affecting demand. Mathematically, it is calculated as the percentage change in quantity demanded divided by the percentage change in the variables, such as price.


Examples of Elasticity of Demand:

Let's consider a few examples to illustrate the concept of elasticity of demand:

  • Price Elasticity: If the price of watches falls from Rs. 600 to Rs. 500 per unit, resulting in an increase in demand from 100 to 150 units, it demonstrates how demand changes in response to a price change.

  • Income Elasticity: Suppose there is a government subsidy that reduces the price of wheat from Rs. 10/kg to Rs. 9/kg. As a result, the demand for wheat increases from 500 kg to 520 kg. This example shows how changes in a consumer's income can impact the quantity demanded.


Types of Elasticity of Demand:

The elasticity of demand can be classified into three main types:

  1. Price Elasticity: This measures the percentage change in demand for a product in response to a change in its price.

  2. Income Elasticity: It evaluates the percentage change in quantity demanded relative to changes in a consumer's income.

  3. Cross Elasticity: This reflects the change in demand for one product in response to a change in the price of another related product.


Advantages of Understanding Elasticity of Demand:

  1. Pricing Optimization: When the elasticity of demand is high, companies can make informed decisions about the optimal price for their products. By analyzing consumer responses to price changes, companies can establish pricing strategies that maximize their profits.

  2. Taxation Considerations: An increase in the elasticity of demand can lead to lower taxes. This is because higher elasticity indicates that consumers are more responsive to price changes, making it less burdensome to tax certain goods or services.

  3. Sales Growth Potential: Products with high elasticity of demand offer opportunities for increased sales. Business owners can adjust their pricing structures to attract more customers, leading to higher revenue and market share.

  4. Policy Formulation: The elasticity of demand is essential for defining government policies, particularly related to taxation. It helps policymakers understand the impact of taxes on consumer behavior and make informed decisions.

  5. International Trade: Price elasticity is useful in international trade for determining the pricing of export goods. Understanding the demand elasticity in different markets helps exporters set competitive prices and maximize their export potential.



The elasticity of demand is used to calculate a correlation between demand and price. It helps businesses to forecast the demand for a product. Types of products or services and income levels determine price elasticity. Price elasticity is influenced by factors such as product type and income levels, and it has implications for taxation, sales growth, government policies, and international trade. Understanding and analyzing elasticity of demand can be a crucial tool for businesses in making strategic decisions